Engine Squealing
Thread Starter
Staging Lane
Joined: Jan 2008
Posts: 80
Likes: 0
From: Ventura County, CA
Engine Squealing Hello all,
I just got my conversion on the road and it has now begun to make a loud squealing noise. I thought for sure it had to be the belt because it sounds just like a belt squeal, but its not. I pulled the belt off and it still makes the noise. It almost sounds like it is coming from the engine unfortunately...the motor is a 2005 5.3l. Has anybody dealt or know what could be causing this noise? Any help would be greatly appreciated. Thanks!
I just got my conversion on the road and it has now begun to make a loud squealing noise. I thought for sure it had to be the belt because it sounds just like a belt squeal, but its not. I pulled the belt off and it still makes the noise. It almost sounds like it is coming from the engine unfortunately...the motor is a 2005 5.3l. Has anybody dealt or know what could be causing this noise? Any help would be greatly appreciated. Thanks!
Thread Starter
Staging Lane
Joined: Jan 2008
Posts: 80
Likes: 0
From: Ventura County, CA
The sound does change with engine speed. Here is a short video of the noise. The exhaust is kind of loud so you'll have to listen for it.
https://streamable.com/n5bbr
https://streamable.com/n5bbr
TECH Senior Member
Joined: Jun 2016
Posts: 22,291
Likes: 3,616
From: Central Cal.
Vacuum leak. It goes away as soon as you hit the throttle, and comes back once vacuum builds again. It could be a manifold vacuum fitting with the hose off, or one of the gasket O-rings is leaking. Check your whole manifold install.
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Staging Lane
Joined: Jan 2008
Posts: 80
Likes: 0
From: Ventura County, CA
Just wanted to close the loop on this in case anyone else ends up with the same issue. Turns out I had the PCV system plumbed incorrectly when I went from the truck intake to the car intake. All seems good now. Thank you so much all the help!